Non-Transitory Computer-Readable Recording Medium, Operation Terminal, Reliability Determination Method, and Information Processing System

This application is a continuation of International Application No. PCT/JP2023/047162, filed on Dec. 28, 2023, which designated the U.S., which is based upon and claims the benefit of priority of the prior Japanese Patent Application No. 2023-049049, filed on Mar. 24, 2023, the entire contents of which are incorporated herein by reference.

The present disclosure relates to a non-transitory computer-readable recording medium, an operation terminal, a reliability determination method, and an information processing system.

In recent years, with the spread of smartphones and social networking services (SNS) on the Internet, it is possible to send and browse information regardless of time and place. However, information sent in this manner may include, for example, false or incorrect information that is intentionally spread, and may be spread in some situations.

Therefore, from the viewpoint of suppressing the spread of false information as described above, for example, a mechanism for confirming the certainty of data on the Internet may be used.

For example, “Trustable Internet” has been proposed as an architecture for confirming data certainty (see, for example, Non Patent Literature). The “Trustable Internet” adds information that can be supported as the certainty of the original data by the sender or a third party for the data so that the certainty of the data on the Internet can be easily confirmed. Examples of the information to be added include information on persons and objects involved in data generation, processing, and the like, information on confirmation and evaluation by a third party who has viewed the data, information on a physical space related to the data (sensor data and the like), and the like.

Then, the “Trustable Internet” has an endorsement layer shared between the user and a person who adds information on the Internet hierarchy. As a result, the “Trustable Internet” makes it possible for the user to use the web application as in the conventional case and to confirm the certainty of data.

An example of related-art is described in Trustable Internet “https://tial.sfc.keio.ac.jp/blob/Trustable_Internet_White paper_V1.0.pdf”

However, there is a problem that the user is not able to easily determine whether or not the data on the Internet is reliable. For example, the user can confirm information added to data on the Internet and determine whether or not the data is reliable. However, the information added to the data on the Internet is not necessarily reliable information for the user.

That is, whether or not the information added to the data is believed varies depending on the user. As an example, whether the user believes the information added to the data changes depending on whether or not the information added to the data is information from a person or an organization trusted by the user. As a result, even if the user confirms the information added to the data on the Internet, the user is not able to easily determine whether or not the data is reliable.

In addition, in a case where a large amount of information is displayed to be added to data on the Internet, it takes time and effort for the user to confirm all the information. As a result, the user is not able to easily determine whether or not the data on the Internet is reliable.

An operation terminal includes a first display unit, a reception unit, a determination unit and a second display unit. The first display unit displays, on a screen, specific data uploaded on the Internet. The reception unit receives property data indicating certainty of the specific data. The determination unit determines a degree of reliability of the specific data with respect to the property data using a first storage unit that stores a viewpoint emphasized by a viewer viewing the data. The second display unit displays information indicating the degree of reliability of the specific data on the screen in a superimposed manner.

The object and advantages of the invention will be realized and attained by means of the elements and combinations particularly pointed out in the claims.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are not restrictive of the invention.

Hereinafter, embodiments of a reliability determination program, an operation terminal, and a reliability determination method disclosed in the present application will be described in detail with reference to the drawings. Note that, in the embodiment, the present invention is not limited to the embodiment.

9 9 9 1 2 2 3 4 1 1 2 2 2 2 1 FIG. 1 FIG. a b a a b b. First, a configuration of an information processing systemwill be described.is a diagram illustrating an example of a configuration of the information processing systemaccording to an embodiment. The information processing systemillustrated inincludes, for example, an operation terminal (viewer), an operation terminal (sender), an operation terminal (endorser), a management server, and a storage device. Hereinafter, the operation terminal (viewer)is also simply referred to as the operation terminal. The operation terminal (sender)is also simply referred to as an operation terminal. The operation terminal (endorser)is also simply referred to as an operation terminal

2 7 2 2 1 2 3 7 a a a b The operation terminalis, for example, a terminal owned by a sender who sends data, and is a terminal that the sender uploads sent data to a web server (not illustrated) on Internet. Specifically, the operation terminalmay be, for example, a smartphone and the like owned by a sender. In addition, the operation terminalcan access the operation terminal, the operation terminal, and the management servervia the Internet, for example. Note that the sent data may be, for example, a sentence posted on a social network service (SNS).

2 7 41 41 2 2 1 2 3 7 b b b a The operation terminalis, for example, a terminal owned by an endorser, and is a terminal that performs endorsement and the like of sent data uploaded by a sender to a web server on the Internet. The term “endorse” as used herein means that information supported by a person or an object is added to sent data. The added information referred to herein is also referred to as “endorsement data” and is an example of property data. Then, a person or an object that performs endorsement is called an “endorser”. That is, the endorser is, for example, a person or an object that generates endorsement data, and includes a person other than the endorser and a device that automatically generates the endorsement data. Specifically, the operation terminalmay be, for example, a smartphone and the like owned by an endorser. In addition, the operation terminalcan access the operation terminal, the operation terminal, and the management servervia the Internet, for example.

4 41 7 41 41 The storage deviceis, for example, a hard disk drive (HDD) or a solid state drive (SSD), and stores the endorsement dataadded by an endorser and the like to the sent data on the Internetuploaded by the sender. In addition, the endorsement datais, for example, information used as a determination criterion when determining the certainty of the content of the sent data. Note that the certainty of data refers to the degree of correctness of data. Specifically, the endorsement dataincludes information on persons and objects involved in sent data generation, processing, and the like, information on confirmation and evaluation by a third party (endorser) who has viewed the sent data, information on a physical space related to the sent data (sensor data and the like), and the like.

3 41 The management serveris, for example, one or more physical machines or one or more virtual machines, and performs a processing of managing the endorsement datafor the sent data.

3 41 7 41 3 4 41 7 3 41 41 3 41 Specifically, the management serverreceives, for example, the endorsement dataindicating the certainty of the sent data uploaded onto the Internetand the digital signature generated from the endorsement data. Then, for example, the management serverstores, in the storage device, the endorsement datato which the identification information of the sent data uploaded onto the Internetand the digital signature are added. That is, for example, the management serverstores each piece of the endorsement datain a state where a digital signature generated by an endorser who is a generation subject of each piece of the endorsement datais added. As a result, the management serverensures authenticity and non-falsification of each piece of the endorsement data.

3 41 1 41 3 41 41 4 3 41 1 1 7 41 Then, the management serverreceives a request for acquiring the specific endorsement datafrom the operation terminal. The acquisition request includes, for example, identification information of the sent data corresponding to the specific endorsement data. Then, the management serveracquires the specific endorsement datacorresponding to the acquisition request from the endorsement datastored in the storage device. Then, the management servertransmits the acquired specific endorsement datato the operation terminalas a request source. As a result, for example, in a case where the viewer of the operation terminalbrowses the sent data uploaded on the Internet, it is possible to appropriately determine the certainty of the sent data by referring to the endorsement datacorresponding to the sent data.

41 7 4 3 41 41 3 41 4 3 41 41 41 41 Note that, for example, in a case where another piece of the endorsement datacorresponding to a person or an object related to the sent data uploaded onto the Internetis already stored in the storage device, the management servermay store the endorsement datacorresponding to the sent data and the other piece of endorsement datain association with each other. That is, for example, when the management serverstores each piece of the endorsement datain the storage device, the management servercan form a graph structure by associating the endorsement datawith another piece of the endorsement datafor an endorser who is a generation subject of each piece of the endorsement dataor another piece of the endorsement datafor an object of the sent data.

1 7 1 1 3 7 The operation terminalis, for example, a terminal owned by a viewer, and performs a reliability determination processing indicating whether or not the sent data uploaded by a sender to a web server on the Internetis reliable. The operation terminalmay be, for example, a smartphone and the like owned by a viewer. In addition, the operation terminalcan access the management servervia the Internet, for example.

1 7 1 1 41 3 41 3 Specifically, the operation terminalaccording to the embodiment acquires the sent data uploaded by the sender to a web server on the Internet. Then, the operation terminaldisplays the acquired sent data on the screen. In addition, the operation terminaltransmits a request for acquiring the endorsement datafor the sent data to the management server, and acquires the endorsement datafor the sent data from the management server. The acquisition request includes, for example, identification information of the sent data.

1 31 32 41 1 41 31 41 32 1 1 Then, the operation terminaldetermines whether or not the sent data is reliable using an emphasis viewpoint liststoring viewpoints emphasized by the viewer and a reliability target liststoring people or organizations trusted by the viewer with respect to the acquired endorsement data. As an example, the operation terminaldetermines that the sent data is reliable in a case where the endorsement datafor the sent data is positive information with respect to the emphasis viewpoint stored in the emphasis viewpoint list, and the endorser of the endorsement datais stored in the reliability target list. That is, the operation terminaldetermines that the sent data is reliable for the viewer in a case where the sent data being browsed by the viewer has a positive endorsement by the third party endorser with respect to the viewpoint emphasized by the viewer, and the endorser is a person or an organization trusted by the viewer. Then, the operation terminaldisplays the determination result in a superimposed manner on a screen for browsing the sent data.

41 As a result, the viewer can easily determine whether or not the sent data is reliable from the determination result for the sent data, for example. That is, the viewer can quickly determine whether or not the sent data is reliable with respect to the viewpoint (emphasis viewpoint) that the viewer desires to know without checking all the pieces of the endorsement data. As a result, the viewer can quickly make a decision (for example, purchase and the like) on the sent data.

2 FIG. 2 FIG. Here, a flow of the reliability determination processing according to the embodiment will be described with reference to.is a diagram illustrating an example of a flow of reliability determination processing according to the embodiment.

2 FIG. 1 7 1 As illustrated in, the operation terminalacquires the sent data uploaded by the sender to a web server on the Internet. Then, the operation terminaldisplays the acquired sent data on the screen. The sent data mentioned here is, for example, data including product information on the screw.

1 3 41 41 41 41 In addition, the operation terminalacquires, from the management server, the endorsement dataassociated with the sent data. One piece of the endorsement datais, for example, data obtained by endorsing a sentence “The strength of the screw is fine.” by a company A as an endorser. Another endorsement datais, for example, data in which a document “The financial condition is good.” is endorsed by an analyst B, as an endorser. Then, a digital signature generated by each endorser is added to each piece of the endorsement data.

1 31 32 41 31 32 Then, the operation terminaldetermines whether or not the sent data is reliable using an emphasis viewpoint liststoring viewpoints emphasized by the viewer and a reliability target liststoring people or organizations trusted by the viewer with respect to the acquired endorsement data. In the emphasis viewpoint list, for example, “material of screw”, “strength of screw”, and the like are set as emphasis viewpoints of the viewer. In the reliability target list, for example, “company A”, “company B”, and the like are set as the reliability target of the viewer.

31 32 41 1 41 1 For example, “strength of screw” is set in the emphasis viewpoint listand “company A” is set in the reliability target listwith respect to the endorsement dataincluding the content of “The strength of the screw is fine.” endorsed by the company A. Therefore, the operation terminaldetermines that the sent data is reliable. That is, regarding the “strength of screw” which is the emphasis viewpoint of the viewer, there is the endorsement dataendorsed by the “company A” trusted by the viewer. Therefore, it is determined that the sent data including the product information on the screw is reliable. Then, the operation terminalsuperimposes and displays, for example, “Trustable” indicating that it is reliable which is the determination result on the screen for browsing the sent data.

41 As a result, the viewer can easily determine whether or not the sent data is reliable from the determination result for the sent data, for example. In other words, the viewer can quickly determine whether or not the sent data is reliable with respect to the viewpoint (emphasis viewpoint) that the viewer desires to know without checking all the pieces of the endorsement data. As a result, the viewer can quickly make a decision (for example, purchase and the like) on the sent data.

1 1 10 20 30 3 FIG. 3 FIG. 3 FIG. Next, a functional configuration of the operation terminal (viewer)according to the embodiment will be described with reference to.is a block diagram illustrating an example of a functional configuration of an operation terminal (viewer) according to the embodiment. As illustrated in, the operation terminal (viewer)includes a viewing application, a control unit, and a storage unit.

10 10 7 1 The viewing applicationis, for example, a web browser. Examples of the web browser include Google Chrome, Safari, Microsoft Edge, and the like. The viewing applicationaccesses a web server or a cloud via the Internet, acquires sender data and the like, and displays the data on the screen of the operation terminal.

30 31 32 The storage unitincludes the emphasis viewpoint listand the reliability target list.

31 31 31 31 The emphasis viewpoint listis a list in which viewpoints emphasized by the viewer are stored. That is, the emphasis viewpoint liststores viewpoints that are emphasized when the viewer determines whether or not the sent data is reliable. The emphasis viewpoint listmay be generated in advance by a viewer or may be added as appropriate. Note that the emphasis viewpoint listmay be generated using a user interface (UI) to which the viewer inputs a viewpoint that is emphasized.

32 32 32 32 The reliability target listis a list in which a person or an organization trusted by the viewer is stored. That is, the reliability target liststores reliability targets that are emphasized when the viewer determines whether or not the sent data is reliable. The reliability target listmay be generated in advance by a viewer or may be added as appropriate. Note that the reliability target listmay be generated using a UI to which the viewer inputs a reliability target that is emphasized.

31 31 31 31 4 FIG. 4 FIG. 4 FIG. Here, an example of the emphasis viewpoint listwill be described with reference to.is a diagram illustrating an example of an emphasis viewpoint list according to the embodiment. As illustrated in, the emphasis viewpoint liststores viewpoints emphasized by the viewer. As an example, the emphasis viewpoint liststores “material of screw”, “strength of screw”, and “price”. Note that the emphasis viewpoint listis not limited to the items, and an arithmetic expression using the items may be stored. An example of the arithmetic expression using the items is “screw strength ≥nn”.

32 32 32 32 5 FIG. 5 FIG. 5 FIG. Here, an example of the reliability target listwill be described with reference to.is a diagram illustrating an example of a reliability target list according to the embodiment. As illustrated in, the reliability target liststores, for example, an organization/person (name). In addition, the reliability target listmay store, for example, a country, an affiliation, a title name, and an owned qualification in association with each other as attributes of an organization/person (name). As an example, “oo Engineering Co., Ltd.” is stored as a reliability target. “Japan” is associated with “oo Engineering Co., Ltd.” as an attribute. In addition, “xx Kogyo Co., Ltd.” is stored as a reliability target. “America” is associated with “xx Industry Co., Ltd.” as an attribute. In addition, “AA Taro” is stored as a reliability target. “Japan”, “oo Co., Ltd.”, “Quality assurance department manager”, and “XX specialist” are associated with “AA Taro” as attributes. Note that the items constituting the reliability target listare not limited thereto, and may be added as appropriate.

3 FIG. 20 21 22 Returning to, the control unitincludes a screen processing unitand a reliability determination unit.

21 21 22 The screen processing unitexecutes screen processing. For example, the screen processing unitdisplays reliability result information corresponding to the reliability determined by the reliability determination unitto be described later in a superimposed manner on a screen on which the viewer browses the sent data. Examples of the reliability include “high” indicating high reliability, “low” indicating low reliability, and “medium” indicating medium reliability. Note that the reliability is not limited to this, and may be represented by, for example, a numerical value between 0 and 100.

22 22 41 3 22 3 41 41 3 22 41 31 32 22 41 32 22 41 31 The reliability determination unitdetermines the reliability of the sent data. For example, the reliability determination unitreceives the endorsement datafor the sent data from the management server. As an example, the reliability determination unitsends, to the management server, an acquisition request for the endorsement dataincluding the identification information of the sent data, and receives the endorsement datafor the sent data from the management server. Then, the reliability determination unitdetermines the reliability of the sent data with respect to the received endorsement databy using the emphasis viewpoint listand the reliability target list. As an example, the reliability determination unitdetermines whether or not the endorser of the endorsement datamatches the reliability target set in the reliability target list. In addition, the reliability determination unitdetermines whether or not the content of the endorsement datamatches the viewpoint set in the emphasis viewpoint list.

22 41 32 41 31 41 41 41 Then, the reliability determination unitdetermines that the reliability is “high” in a case where the endorser of the endorsement datamatches the reliability target set in the reliability target listand the content of the endorsement datamatches the viewpoint set in the emphasis viewpoint list. This is because the endorser to be trusted is set in the endorsement data, and the emphasis viewpoint of the viewer is set in the endorsement data. As a result, the viewer can easily determine that the sent data is reliable by viewing the display of the reliability “high”. That is, the viewer can quickly determine whether or not the sent data is reliable with respect to the viewpoint emphasized by the viewer himself/herself without checking all the pieces of the endorsement data.

22 41 32 41 31 41 41 Then, the reliability determination unitdetermines that the reliability is “low” in a case where the endorser of the endorsement datamatches the reliability target set in the reliability target listbut the content of the endorsement datadoes not match the viewpoint set in the emphasis viewpoint list. This is because even if the endorser to be trusted is set in the endorsement data, the emphasis viewpoint of the viewer is not set. As a result, the viewer can easily determine that the sent data is not reliable by viewing the display of the reliability “low”. That is, the viewer can quickly determine whether or not the sent data is reliable with respect to the viewpoint emphasized by the viewer himself/herself without checking all the pieces of the endorsement data.

22 41 32 41 31 41 41 Then, the reliability determination unitdetermines that the reliability is “medium” in a case where the endorser of the endorsement datadoes not match the reliability target set in the reliability target listbut the content of the endorsement datamatches the viewpoint set in the emphasis viewpoint list. This is because the endorser to be trusted is not set in the endorsement data, but the emphasis viewpoint of the viewer is set. As a result, the viewer can easily determine the reliability of the sent data by viewing the display of the reliability “medium”. That is, the viewer can quickly determine whether or not the sent data is reliable with respect to the viewpoint emphasized by the viewer himself/herself without checking all the pieces of the endorsement data.

22 41 32 41 31 41 41 Then, the reliability determination unitdetermines that the reliability is “low” in a case where the endorser of the endorsement datadoes not match the reliability target set in the reliability target listand the content of the endorsement datadoes not match the viewpoint set in the emphasis viewpoint list. This is because the endorser to be trusted is not set in the endorsement data, and the emphasis viewpoint of the viewer is not set. As a result, the viewer can easily determine that the sent data is not reliable by viewing the display of the reliability “low”. That is, the viewer can quickly determine whether or not the sent data is reliable with respect to the viewpoint emphasized by the viewer himself/herself without checking all the pieces of the endorsement data.

22 41 3 22 41 Note that the reliability determination unitmay receive the endorsement datafor the sent data from the management serveragain after a lapse of a predetermined time and determine the reliability of the sent data. As a result, the reliability determination unitcan change the determination by using the newly added endorsement data.

1 22 6 FIG. 6 FIG. Next, a screen image of the operation terminal (viewer)will be described with reference to.is a diagram illustrating a screen image of an operation terminal (viewer). Note that it is assumed that the reliability determination unitdetermines that the reliability is “medium” for the sent data.

6 FIG. 1 41 As illustrated in, in the operation terminal, sent data including product information on the screw is displayed on a screen. Then, “Trust Level Medium” corresponding to the reliability “medium” is superimposed and displayed on the screen on which the sent data is displayed. As a result, the viewer can easily determine whether or not the sent data is reliable by viewing the display of the reliability “medium”. That is, the viewer can quickly determine whether or not the sent data is reliable with respect to the viewpoint emphasized by the viewer himself/herself without checking all the pieces of the endorsement data.

20 1 7 FIG. 7 FIG. Next, a flowchart of control processing performed by the control unitof the operation terminal (viewer)according to the embodiment will be described with reference to.is a diagram illustrating an example of a flowchart of control processing of the operation terminal (viewer) according to the embodiment.

7 FIG. 10 11 As illustrated in, the viewing applicationacquires the data sent from the web server and displays the acquired data (step S).

22 41 41 12 22 13 22 Then, the reliability determination unitacquires the endorsement datacorresponding to the acquired data, and extracts the name of the endorser from the acquired endorsement data(step S). The reliability determination unitdetermines the reliability of the sent data (step S). Note that a flowchart of the reliability determination processing performed by the reliability determination unitwill be described later.

21 10 14 20 Then, the screen processing unitdisplays the reliability result information corresponding to the reliability determination result on the viewing application(step S). Then, the control processing performed by the control unitends.

22 8 FIG. 8 FIG. Next, a flowchart of the reliability determination processing performed by the reliability determination unitaccording to the embodiment will be described with reference to.is a diagram illustrating an example of a flowchart of reliability determination processing according to the embodiment.

8 FIG. 22 32 21 22 41 32 32 21 22 22 22 41 31 As illustrated in, the reliability determination unitdetermines whether or not the name of the endorser is in the reliability target list(step S). That is, the reliability determination unitdetermines whether or not the name of the endorser of the endorsement datamatches the reliability target set in the reliability target list. In a case where it is determined that the name of the endorser is in the reliability target list(step S; Yes), the reliability determination unitdetermines whether or not the endorser has performed endorsement for the emphasis viewpoint (step S). That is, the reliability determination unitdetermines whether or not the content of the endorsement datamatches the viewpoint set in the emphasis viewpoint list.

22 22 23 41 41 22 28 In a case where it is determined that the endorser has performed endorsement for the emphasis viewpoint (step S; Yes), the reliability determination unitdetermines that the reliability is “high” (step S). This is because the name of the endorser to be trusted is set in the endorsement data, and the emphasis viewpoint of the viewer is set in the endorsement data. Then, the reliability determination unitproceeds to step S.

22 22 24 41 22 28 On the other hand, in a case where it is determined that the endorser has not performed endorsement for the emphasis viewpoint (step S; No), the reliability determination unitdetermines that the reliability is “low” (step S). This is because even if the name of endorser to be trusted is set in the endorsement data, the emphasis viewpoint of the viewer is not set. Then, the reliability determination unitproceeds to step S.

32 21 22 25 22 41 31 25 22 26 41 22 28 On the other hand, in a case where it is determined that the name of the endorser is not in the reliability target list(step S; No), the reliability determination unitdetermines whether or not the endorser has performed endorsement for the emphasis viewpoint (step S). That is, the reliability determination unitdetermines whether or not the content of the endorsement datamatches the viewpoint set in the emphasis viewpoint list. In a case where it is determined that the endorser has performed endorsement for the emphasis viewpoint (step S; Yes), the reliability determination unitdetermines that the reliability is “medium” (step S). This is because the endorser to be trusted is not set in the endorsement data, but the emphasis viewpoint of the viewer is set. Then, the reliability determination unitproceeds to step S.

25 22 27 41 22 28 On the other hand, in a case where it is determined that the endorser has not performed endorsement for the emphasis viewpoint (step S; No), the reliability determination unitdetermines that the reliability is “low” (step S). This is because the endorser to be trusted is not set in the endorsement data, and the emphasis viewpoint of the viewer is not set. Then, the reliability determination unitproceeds to step S.

28 22 21 28 22 In step S, the reliability determination unitoutputs the reliability determination result to the screen processing unit(step S). Then, the reliability determination unitends the reliability determination processing.

1 22 1 31 32 41 22 32 31 32 22 32 Next, a modification of the operation terminal (viewer)according to the embodiment will be described. It has been described that the reliability determination unitin the operation terminal (viewer)according to the embodiment determines the reliability of the sent data by using the emphasis viewpoint listand the reliability target listgenerated in advance by the viewer with respect to the endorsement datafor the sent data. When performing the reliability determination of the sent data, the reliability determination unitmay further add, to the reliability target list, an endorser that has performed endorsement for the emphasis viewpoint set in the emphasis viewpoint listeven if the third party is not set in the reliability target list. That is, the reliability determination unitmay automatically add the reliability target to the reliability target list.

22 41 3 22 41 31 32 22 41 32 22 41 31 For example, the reliability determination unitreceives the endorsement datafor the sent data from the management server. The reliability determination unitdetermines the reliability of the sent data with respect to the received endorsement databy using the emphasis viewpoint listand the reliability target list. As an example, the reliability determination unitdetermines whether or not the endorser of the endorsement datamatches the reliability target set in the reliability target list. In addition, the reliability determination unitdetermines whether or not the content of the endorsement datamatches the viewpoint set in the emphasis viewpoint list.

22 41 32 41 31 41 Then, the reliability determination unitdetermines that the reliability is “medium” in a case where the endorser of the endorsement datadoes not match the reliability target set in the reliability target listbut the content of the endorsement datamatches the viewpoint set in the emphasis viewpoint list. This is because the endorser to be trusted is not set in the endorsement data, but the emphasis viewpoint of the viewer is set.

22 41 32 22 In a case where the reliability is determined to be “medium”, as an example, if the viewer has purchased a product or a service described in the sent data, the reliability determination unitadds the name of the endorser of the endorsement datamatching the viewpoint to the reliability target list. That is, the reliability determination unitmay estimate an endorser that has positively performed endorsement for an object purchased by a viewer as a reliability target. Note that whether or not a product or a service has been purchased may be determined using the purchase history data, for example, if the purchase history data is connected.

22 32 22 32 22 In addition, in another example, in a case where the reliability is determined to be “medium”, the reliability determination unitcounts the number of times that the endorser not set in the reliability target listhas performed endorsement. Then, the reliability determination unitmay add the name of the endorser whose count has reached a certain number of times to the reliability target list. That is, the reliability determination unitmay estimate an endorser that has performed more endorsements as a reliability target.

22 32 22 32 As a result, the reliability determination unitautomatically adds the reliability target to the reliability target list, so that it is possible to save the labor of addition by the viewer and reflect a new endorser. As a result, the reliability determination unitcan determine whether or not the sent data is reliable by using the reflected reliability target list.

22 9 FIG. 9 FIG. Next, a flowchart of the reliability determination processing performed by the reliability determination unitaccording to the embodiment will be described with reference to.is a diagram illustrating a modification of the flowchart of the reliability determination processing according to the embodiment.

9 FIG. 22 32 31 22 41 32 32 31 22 32 22 41 31 As illustrated in, the reliability determination unitdetermines whether or not the name of the endorser is in the reliability target list(step S). That is, the reliability determination unitdetermines whether or not the name of the endorser of the endorsement datamatches the reliability target set in the reliability target list. In a case where it is determined that the name of the endorser is in the reliability target list(step S; Yes), the reliability determination unitdetermines whether or not the endorser has performed endorsement for the emphasis viewpoint (step S). That is, the reliability determination unitdetermines whether or not the content of the endorsement datamatches the viewpoint set in the emphasis viewpoint list.

32 22 33 41 41 22 40 In a case where it is determined that the endorser has performed endorsement for the emphasis viewpoint (step S; Yes), the reliability determination unitdetermines that the reliability is “high” (step S). This is because the name of the endorser to be trusted is set in the endorsement data, and the emphasis viewpoint of the viewer is set in the endorsement data. Then, the reliability determination unitproceeds to step S.

32 22 34 41 22 40 On the other hand, in a case where it is determined that the endorser has not performed endorsement for the emphasis viewpoint (step S; No), the reliability determination unitdetermines that the reliability is “low” (step S). This is because even if the name of endorser to be trusted is set in the endorsement data, the emphasis viewpoint of the viewer is not set. Then, the reliability determination unitproceeds to step S.

32 31 22 35 22 41 31 35 22 36 41 On the other hand, in a case where it is determined that the name of the endorser is not in the reliability target list(step S; No), the reliability determination unitdetermines whether or not the endorser has performed endorsement for the emphasis viewpoint (step S). That is, the reliability determination unitdetermines whether or not the content of the endorsement datamatches the viewpoint set in the emphasis viewpoint list. In a case where it is determined that the endorser has performed endorsement for the emphasis viewpoint (step S; Yes), the reliability determination unitdetermines that the reliability is “medium” (step S). This is because the endorser to be trusted is not set in the endorsement data, but the emphasis viewpoint of the viewer is set.

22 37 22 1 22 37 22 32 38 22 40 Then, the reliability determination unitdetermines whether or not the viewer has purchased the product/service described in the displayed sent data (step S). For example, the reliability determination unitrefers to the purchase history data connected to the operation terminaland determines whether or not the product/service described in the displayed sent data has been purchased. Then, in a case where the reliability determination unithas determined that the viewer has purchased the product/service (step S; Yes), the reliability determination unitadds the name of the endorser to the reliability target list(step S). Then, the reliability determination unitproceeds to step S.

35 22 39 41 22 40 On the other hand, in a case where it is determined that the endorser has not performed endorsement for the emphasis viewpoint (step S; No), the reliability determination unitdetermines that the reliability is “low” (step S). This is because the endorser to be trusted is not set in the endorsement data, and the emphasis viewpoint of the viewer is not set. Then, the reliability determination unitproceeds to step S.

40 22 21 40 22 In step S, the reliability determination unitoutputs the reliability determination result to the screen processing unit(step S). Then, the reliability determination unitends the reliability determination processing.

1 1 41 1 31 41 1 According to the above embodiment, the operation terminaldisplays specific data uploaded on the Internet on the screen. Then, the operation terminalreceives the endorsement dataindicating the certainty of the specific data. Then, the operation terminalrefers to the emphasis viewpoint listthat stores the viewpoints emphasized by the viewer who browses the data with respect to the endorsement data, and determines the degree of reliability of the specific data. Then, the operation terminaldisplays information indicating the degree of reliability of the specific data on the screen in a superimposed manner. According to such a configuration, a viewer can easily determine whether or not data on the Internet is reliable.

1 31 32 41 In addition, according to the above embodiment, the operation terminalrefers to the emphasis viewpoint listand the reliability target liststoring the name of the organization or person trusted by the viewer with respect to the received endorsement data, and determines the degree of reliability of the specific data. According to such a configuration, a viewer can more reliably determine whether or not data on the Internet is reliable.

1 41 32 41 31 1 41 32 41 31 1 In addition, according to the above embodiment, the operation terminaldetermines whether or not the contributor of the endorsement datamatches the name of the organization or person stored in the reliability target list, and determines whether or not the content of the endorsement datamatches the viewpoint stored in the emphasis viewpoint list. The operation terminalderives a degree of reliability indicating that specific data is reliable in a case where it is determined that the contributor of the endorsement datamatches the name of the organization or person stored in the reliability target listand the content of the endorsement datamatches the viewpoint stored in the emphasis viewpoint list. Then, the operation terminaldisplays information indicating the derived degree of reliability on the screen. According to such a configuration, the viewer can easily determine that the sent data is reliable by viewing the information indicating the degree of reliability.

1 41 32 41 31 41 31 41 31 1 In addition, according to the above embodiment, the operation terminalderives the degree of reliability indicating that the specific data is not reliable in a case where it is determined that the contributor of the endorsement datamatches the name of the organization or person stored in the reliability target listbut the content of the endorsement datadoes not match the viewpoint stored in the emphasis viewpoint list, or in a case where it is determined that the contributor of the endorsement datadoes not match the name of the organization or person stored in the emphasis viewpoint listand the content of the endorsement datadoes not match the viewpoint stored in the emphasis viewpoint list. Then, the operation terminaldisplays information indicating the derived degree of reliability on the screen. According to such a configuration, the viewer can easily determine that the sent data is not reliable by viewing the information indicating the degree of reliability.

1 41 32 41 31 1 In addition, according to the above embodiment, the operation terminalderives a degree of reliability indicating that reliability of the specific data is at the medium level in a case where it is determined that the contributor of the endorsement datadoes not match the name of the organization or person stored in the reliability target listand the content of the endorsement datamatches the viewpoint stored in the emphasis viewpoint list. Then, the operation terminaldisplays information indicating the derived degree of reliability on the screen. According to such a configuration, the viewer can easily determine the reliability of the sent data by viewing the information that the reliability is at the medium level.

1 41 32 1 32 In addition, according to the above embodiment, in a case where the derived degree of reliability is at the medium level, the operation terminaladds the name of the contributor of the endorsement datato the reliability target listin a case where there is a purchase history of a product or a service described in specific data. According to such a configuration, the operation terminalcan automatically update the reliability target list.

22 31 32 41 22 31 41 Note that, in the above embodiment, it has been described that the reliability determination unitdetermines the reliability of the sent data using the emphasis viewpoint listand the reliability target listwith respect to the endorsement datacorresponding to the sent data. However, the reliability determination unitis not limited to this, and may determine the reliability of the sent data by using only the emphasis viewpoint listfor the endorsement datacorresponding to the sent data.

9 1 30 1 In addition, in the above embodiment, each component of the illustrated information processing systemis not necessarily physically configured as illustrated. That is, a specific aspect of distribution and integration of the operation terminalis not limited to the illustrated one, and all or a part thereof can be functionally or physically distributed and integrated in an arbitrary unit according to various loads, usage conditions, and the like. In addition, the storage unitmay be connected via a network as an external device of the operation terminal.

1 1 FIG. 10 FIG. In addition, the various processings described in the above embodiment can be realized by executing a program prepared in advance on a computer such as a personal computer or a workstation. Therefore, an example of a computer that executes a reliability determination program that realizes a function similar to that of the operation terminalillustrated inwill be described below.is a diagram illustrating an example of a computer that executes a reliability determination program.

10 FIG. 200 203 215 209 200 213 217 200 201 205 201 203 205 207 209 213 215 217 219 As illustrated in, a computerincludes a central processing unit (CPU)that executes various types of arithmetic processing, an input devicethat receives an input of data from a user, and a display device. In addition, the computerincludes a drive devicethat reads a program and the like from a storage medium, and a communication interface (I/F)that exchanges data with another computer via a network. In addition, the computerincludes a memorythat temporarily stores various types of information and a hard disk drive (HDD). Then, the memory, the CPU, the HDD, a display control unit, the display device, the drive device, the input device, and the communication I/Fare connected by a bus.

213 211 205 205 205 217 217 a b The drive deviceis, for example, a device for a removable disk. The HDDstores a reliability determination programand reliability determination processing-related information. The communication I/Fmanages an interface between the network and the inside of the device, and controls input and output of data from another computer. For example, a modem, a LAN adapter, and the like can be adopted as the communication I/F.

209 209 The display deviceis a display device that displays data such as a document, an image, and functional information, including a cursor, an icon, or a tool box. As the display device, for example, a liquid crystal display, an organic electroluminescence (EL) display, or the like can be adopted.

203 205 201 1 205 31 32 211 205 a b a. The CPUreads the reliability determination program, expands the program in the memory, and executes the program as a process. Such a process corresponds to each functional unit of the operation terminal. The reliability determination processing-related informationincludes, for example, the emphasis viewpoint listand the reliability target list. Then, for example, the removable diskstores each piece of information such as the reliability determination program

205 205 200 200 205 a a Note that the reliability determination programis not necessarily stored in the HDDfrom the beginning. For example, the program may be stored in a “portable physical medium” such as a flexible disk (FD), a CD-ROM, a DVD disk, a magneto-optical disk, or an IC card, which are inserted into the computer. Then, the computermay read and execute the reliability determination programfrom these.

(1) A reliability determination program causing a computer to execute processing of: displaying, on a screen, specific data uploaded on the Internet; receiving property data indicating certainty of the specific data, and determining a degree of reliability of the specific data with respect to the property data using a first storage unit that stores a viewpoint emphasized by a viewer viewing the data; and displaying information indicating the degree of reliability of the specific data on the screen in a superimposed manner. (2) The reliability determination program according to (1), wherein the determining processing refers to the first storage unit and a second storage unit storing a name of an organization or a person trusted by the viewer with respect to the received property data, and determines the degree of reliability of the specific data. (3) The reliability determination program according to (2), wherein the determining processing determines whether or not a contributor of the property data matches a name of an organization or a person stored in the second storage unit and determines whether or not a content of the property data match a viewpoint stored in the first storage unit, and derives the degree of reliability indicating that the specific data is reliable in a case where it is determined that the contributor of the property data matches the name of the organization or the person stored in the second storage unit and content of the property data matches the viewpoint stored in the first storage unit, and the displaying processing displays information indicating the derived degree of reliability on the screen. (4) The reliability determination program according to (3), wherein the deriving processing derives the degree of reliability indicating that the specific data is not reliable in a case where it is determined that the contributor of the property data matches the name of the organization or the person stored in the second storage unit but the content of the property data does not match the viewpoint stored in the first storage unit, or in a case where it is determined that the contributor of the property data does not match the name of the organization or the person stored in the second storage unit and content of the property data does not match the viewpoint stored in the first storage unit, and the displaying processing displays the information indicating the derived degree of reliability on the screen. (5) The reliability determination program according to (3), wherein the deriving processing derives the degree of reliability indicating that the reliability of the specific data is at a medium level in a case where it is determined that the contributor of the property data does not match the name of the organization or the person stored in the second storage unit but the content of the property data matches the viewpoint stored in the first storage unit, and the displaying processing displays the information indicating the derived degree of reliability on the screen. (6) The reliability determination program according to (5), wherein the name of the contributor of the property data is added to the second storage unit in a case where there is a purchase history of a product or a service described in the specific data in a case where the derived degree of reliability is at the medium level. (7) The operation terminal comprising: a first display unit that displays, on a screen, specific data uploaded on the Internet; a reception unit that receives property data indicating certainty of the specific data; a determination unit that determines a degree of reliability of the specific data with respect to the property data using a first storage unit that stores a viewpoint emphasized by a viewer viewing the data; and a second display unit that displays information indicating the degree of reliability of the specific data on the screen in a superimposed manner. (8) A reliability determination method in which a computer executes processing of: displaying, on a screen, specific data uploaded on the Internet; receiving property data indicating certainty of the specific data, and determining a degree of reliability of the specific data with respect to the property data using a first storage unit that stores a viewpoint emphasized by a viewer viewing the data; and displaying information indicating the degree of reliability of the specific data on the screen in a superimposed manner. (9) An information processing system including an information processing device and an operation terminal capable of accessing the information processing device, wherein the information processing device includes a storage unit that stores property data indicating certainty of data uploaded on the Internet, and the operation terminal includes a first display unit that displays, on a screen, specific data, a reception unit that receives property data indicating certainty of the specific data from the information processing device, a determination unit that determines a degree of reliability of the specific data with respect to the property data referring to a first storage unit that stores a viewpoint emphasized by a viewer viewing the data, and a second display unit that displays information indicating the degree of reliability of the specific data on the screen in a superimposed manner. Regarding the embodiments including the above examples, the following supplementary notes are further disclosed.

According to one embodiment, a user can easily determine whether or not data on the Internet is reliable.

All examples and conditional language recited herein are intended for pedagogical purposes of aiding the reader in understanding the invention and the concepts contributed by the inventor to further the art, and are not to be construed as limitations to such specifically recited examples and conditions, nor does the organization of such examples in the specification relate to a showing of the superiority and inferiority of the invention. Although the embodiment of the present invention has been described in detail, it should be understood that the various changes, substitutions, and alterations could be made hereto without departing from the spirit and scope of the invention.